class PRException(Exception):
    pass


class APIException(PRException):
    pass


class APIConnectionError(APIException):
    pass


class APITimeoutError(APIException):
    pass


class APIResponseError(APIException):
    pass


class ConfigurationError(PRException):
    pass


class ToolExecutionError(PRException):
    def __init__(self, tool_name: str, message: str):
        self.tool_name = tool_name
        super().__init__(f"Error executing tool '{tool_name}': {message}")


class FileSystemError(PRException):
    pass


class SessionError(PRException):
    pass


class ContextError(PRException):
    pass


class ValidationError(PRException):
    pass